I'm replacing timing chain on bike. When I opened up engine I realized I was on tooth off on the exhaust cam. I had only 13 pins between timing marks. What damage could have been done by being one tooth off? The bike ran great. I reshimmed in July of last yr so I imagined that is when I mis-timed bike. The valve clearances where still in spec. I have replaced timing chain does this look right? I know gray has cover this alot but I just want to be sure. Thanks alot!